英语问题(说明语法)
题目
英语问题(说明语法)
1.what has happened to Tom?
He is so tried after ____walk
A three hours B three hours' C three hour's D three hour
2.Jack's pictures were not so beautiful as _______?
A.the others' B .the other C.the other's D.each other
答案
b
a
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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